Deailed Answers 2025.
phenol red - ANSWER- used to measure pH
parallel - ANSWER- valves are open if handle is ______ to the pipe
pH - ANSWER- how acidic or basic a solution (pool water) is
60 to 180 - ANSWER- acceptable range of Total Alkalinity in a pool
7.2 to 7.8 - ANSWER- acceptable range of pH in a pool
150 to 400 - ANSWER- acceptable range of calcium hardness in a pool
1500 - ANSWER- maximum reading for total dissolved solids (TDS)
7.5 - ANSWER- pH of a human eye
15 minutes - ANSWER- maximum time someone should spend in a spa
8 hours - ANSWER- maximum turnover rate for a main pool
2 hours - ANSWER- maximum turnover rate for a wading pool
30 minutes - ANSWER- maximum turnover rate for a spa
104 - ANSWER- maximum temperature for a spa is _____ degrees
-0.5 - +0.5 - ANSWER- acceptable range for the Langelier Saturation Index
flow meter - ANSWER- instrument that measures how fast the water is returning to the
pool after it has been cleaned
parts per million - ANSWER- the rate of flow is measured in...
effluent line - ANSWER- other name for return line
DPD #1 and #2 - ANSWER- to measure free available chlorine the reagents should
be...
floculent - ANSWER- filter aid that makes small dirt bigger